Rural Water

Question 1

What is the primary concern with shallow wells or ponds?

Answer 1

Easily contaminated

Shallow water sources are more susceptible to pollution from surface runoff and other environmental factors.

Question 2

What depth defines shallow ground water systems?

Answer 2

Less than 25 feet deep

Shallow ground water systems are typically more vulnerable to contamination.

Question 3

What type of wells are identified by logs and are driven?

Answer 3

Driven wells

Driven wells are shallow and installed using specialized equipment.

Question 4

What is the typical diameter range for drilled wells?

Answer 4

4 to 6 inches

This size range is standard for many residential and commercial applications.

Question 5

What must slabs with a well head do?

Answer 5

Grade away from well head

Proper grading helps prevent surface water from flowing into the well.

Question 6

What has been a requirement for wells in British Columbia since 2005?

Answer 6

Well capacity, ground makeup, audiology type

These requirements contribute to the sustainable management of water resources.

Question 7

What type of pumps uses spinning impellers?

Answer 7

Centrifugal pumps

These pumps are commonly used for their efficiency in moving water.

Question 8

What does the volute in a centrifugal pump do?

Answer 8

Reduces velocity and builds pressure

The volute is designed to convert kinetic energy into pressure energy.

Question 9

What is the theoretical pressure range for centrifugal pumps?

Answer 9

1-4 psi to 34 psi

Actual performance can vary based on design and application.

Question 10

What type of pump typically has a motor at the bottom?

Answer 10

Submersible pumps

These pumps are designed to operate underwater, providing effective water lifting.

Question 11

What is the common configuration for single-phase motors?

Answer 11

Permanent split capacitor (PSC)

PSC motors are widely used for their efficiency and reliability.

Question 12

Fill in the blank: The motor on a submersible pump adds about ______ psi.

Answer 12

10 psi

This pressure boost is crucial for effective water delivery.

Question 13

True or False: Centrifugal pumps are the only type of pumps used for deep water applications.

Answer 13

False

Deep water jet pumps and other types may also be utilized.

Question 14

What type of motors are often used in industrial/commercial applications?

Answer 14

Three-phase motors

These motors are preferred for their power and efficiency in larger systems.

Question 15

What is a common issue with positive displacement pumps?

Answer 15

Noisy and expensive

While effective, these pumps may not be suitable for all applications due to noise and cost.

Question 18

What is the recommended maximum number of times per hour for submersible pumps?

Answer 18

25 times per hour

Question 19

What type of control box can submersible pumps have?

Answer 19

Ground mounted control box containing start capacitor, relay, and protection components

Question 20

What color is the ground wire in submersible pumps?

Answer 20

Green

Question 21

How many black wires do Z wire pumps have?

Answer 21

Two black wires

Question 22

What types of pump types are mentioned?

Answer 22

• CSIR
• SCR types

Question 23

What is a VFD?

Answer 23

An electric device that controls the speed of a motor by varying the frequency of the power supply

Question 24

What is the significance of a check valve on submersible pumps?

Answer 24

Should be set to 25 psi and below drawdown

Question 25

What material is the most popular for pipes mentioned?

Answer 25

Polyethylene

Question 26

What is the maximum depth for certain pumps in Bra65?

Answer 26

600 feet

Question 27

What is required for all plastic pipes?

Answer 27

Torque arresters

Question 28

What should be considered when selecting well components?

Answer 28

* Well size * Depth * Yield

Question 29

What is the formula for calculating Total Dynamic Head (TDH)?

Answer 29

TDH = vertical lift + horizontal pipe length + pipe diameter friction loss

Question 30

What is the suggested minimum yield for wells?

Answer 30

6 GPM per well/spring

Question 31

What is the average water requirement per person per day?

Answer 31

50 - 100 gallons water/person/day

Question 32

Fill in the blank: Peak demand can be calculated using _______.

Answer 32

tables

Question 33

True or False: VED pumps need pressure switches.

Answer 33

False

Question 34

What components are used for pressure control in pumps?

Answer 34

* Pressure switches * Transducers

Question 35

What should be considered when checking the pressure supply available to pump?

Answer 35

Pressure supply available to pump

Question 36

What is the peak demand calculation based on?

Answer 36

Household count and peak flow rate

Question 37

What is the primary function of a high-volume press in relation to V FL Rumps?

Answer 37

To dampen sudden pressure surges ## Footnote This is important for maintaining system stability.

Question 38

What are specific PIES HANKS available for?

Answer 38

For V.D pumps ## Footnote These are specialized components for certain types of pumps.

Question 39

What factors are included in calculating Suction Head?

Answer 39

Suction (701 + friction loss) ## Footnote This calculation is crucial for pump performance.

Question 40

What is the purpose of the discharge head in a pump system?

Answer 40

To relieve pressure from the pump to the storage tank ## Footnote This helps in managing the flow and pressure in the system.

Question 41

What is the recommended minimum velocity for a water flow in a pumping system?

Answer 41

A minimum velocity to avoid issues ## Footnote This ensures efficient operation and prevents sedimentation.

Question 42

How much will a single-phase pump motor consume during operation?

Answer 42

6, holmalfouet ## Footnote 'Holmalfouet' seems to be a typographical error.

Question 43

How do you size the pref tank for a pump?

Answer 43

It must accommodate 1 minute of startup at the pump running 'gpm rate' ## Footnote This is essential for preventing cavitation and ensuring smooth operation.

Question 44

What should the valve be positioned at relative to the pump level?

Answer 44

At least 3° under the pump level ## Footnote This positioning helps maintain proper flow dynamics.

Question 45

What is the minimum requirement for a submersible pump?

Answer 45

Needs to be at least 2 feet below the surface ## Footnote This ensures proper operation and prevents air intake.

Question 46

What factors should be verified for a water pump based on nameplate data?

Answer 46

* Hp * Voltage * Phase * Hertz ## Footnote These specifications are critical for compatibility and performance.

Question 47

What is the recommended distance between the pump and the electrical panel?

Answer 47

Should not exceed 90 meters ## Footnote This distance helps minimize electrical losses.

Question 48

What type of switch should be wired in for a pump system?

Answer 48

A disconnect switch ## Footnote This is important for safety and maintenance.

Question 49

What is an inducer sleeve used for in a pump system?

Answer 49

To speed up water flow ## Footnote This is particularly useful if the well is too large to accommodate minimum cooling velocity.

Question 50

What type of pumps require a control box switch?

Answer 50

Double pole single throw ## Footnote This type of switch is necessary for controlling the pump's power supply.